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When my amd 64 3200+ was geting a little hot using the stock fan i decided to look for a new, but cheap, alternative.
This fan will fit on any motherboard that supports skt 939, skt 940 and socket 754 type AMD processors. But i have read even though it is compatible and will fit it hasn't in some cases. But in my case it fitted fine.
The first thing i noticed was the size of the thing! It only just fitted in my case, and i have a reasonably sized case. The fan cover sits on rubber feet, i guess this is to reduce vibration and noise. Also it is a fairly heavy piece of kit and some of the corners can be sharp, so watch your fingers. On the bottom there is a thermal pad/paste concoction so you wont need to worry about applying thermal paste directly on to the CPU, this made fitting the fan much easier.
Performance wise my CPU was idling around 50 degrees on the stock AMD cooler, but after adding this it reduced it by around 10 degrees so it was now idling at around 40, i was surprised it was this effective. An interesting feature of this heatsink & fan is the fact that instead of sucking air away from the cooler and out the case it sucks air from outside the case and blows it down onto the CPU, this apparently helps cool the CPU better and keeps the areas around the CPU from getting too hot. Clever feature
Noise wise it is fairly quiet (quieter than the stock cooler). It has been tested @ 2000 rpm to give off around 40 decibels. This quietness is due to the fact the fan is 92mm in diameter so it doesnt have to spin as fast to shift the same volume of air as a smaller one.
Fitting the fan is very easy, if a little fiddly if your case is small. All you need to do is remove the old cooler, clean any thermal paste off of the CPU ( i reccomend using nail varnish remover and cotton buds) then simply place the new cooler squarely on the CPU and loosen the screws at each end of the cooler to put the metal clips each side over the clips on the motherboard, once the metal clips of the cooler are over the clips on the motherboard all you need to do is tighten the screws and thats it. Next you just need to put the 3 pin plug in the CPU_FAN socket on the motherboard (it is usually near the RAM slots) Once that is done you are all set!
If you want a good, affordable solution to cool your CPU effectively this is a great product, also if you want a reasonably quiet CPU cooler this is also an excellent buy.